Question: A machine part has the shape of a solid uniform sphere of mass 2 2 5 gg and diameter 2 . 7 0 cmcm .
A machine part has the shape of a solid uniform sphere of mass gg and diameter cmcm It is spinning about a frictionless axle through its center, but at one point on its equator it is scraping against metal, resulting in a friction force of NN at that point.
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